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Chroma vs pgvectorscale

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Chromapgvectorscale
LanguageRustRust
LicenceApache-2.0PostgreSQL
Stars29k3.1k
Latest1.5.90.9.1
Last push2026-10-052026-10-01
Release cadenceabout 9 days between releasesabout 98 days between releases
Active contributors9 commit authors on the default branch in the last 90 days2 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Pinecone. Alternatives to Pinecone →

    PartialChromaEmbedded or client-server vector store, aimed at LLM applications.

    PartialpgvectorscaleAdds a disk-based StreamingDiskANN index and label filtering to pgvector inside PostgreSQL.